BENCH FOR TESTING WORKING CAPACITY AND DURABILITY OF ROLLING-CONTACT INTER-SHAFT BEARINGS Russian patent published in 1995 - IPC

FIELD: mechanical engineering. SUBSTANCE: device loads an inter-shaft bearing under test with gyroscopic forces by means of a device turning the rotation axis of shafts when the bench platform is moving on wheels. Working conditions of the inter-shaft bearing in practical constructions of particular gas turbine engines are modeled by varying inertial and stiffness characteristics of the bench, speed and direction of rotation of its shafts. EFFECT: enhanced accuracy in determining durability and working capacity of bearings in various structures and units; reduced costs for bearing tests under various conditions; effective investigation and demonstration of bearing damage and destruction. 1 dwg